Python util.text_type函数代码示例

 def has_table(self, connection, table_name, schema=None):
     # seems like case gets folded in pg_class...
     if schema is None:
         cursor = connection.execute(
             sql.text(
                 "select name "
                 "from sys.tables "
                 "where system = false "
                 "and type = 0 "
                 "and name=:name",
                 bindparams=[
                     sql.bindparam('name', util.text_type(table_name),
                                   type_=sqltypes.Unicode)]
             )
         )
     else:
         cursor = connection.execute(
             sql.text(
                 "SELECT tables.name "
                 "FROM sys.tables, sys.schemas "
                 "WHERE tables.system = FALSE "
                 "AND tables.schema_id = schemas.id "
                 "AND type = 0 "
                 "AND tables.name = :name "
                 "AND schemas.name = :schema",
                 bindparams=[
                     sql.bindparam('name',
                                   util.text_type(table_name),
                                   type_=sqltypes.Unicode),
                     sql.bindparam('schema',
                                   util.text_type(schema),
                                   type_=sqltypes.Unicode)]
             )
         )
     return bool(cursor.first())

def assert_raises_message(except_cls, msg, callable_, *args, **kwargs):
    try:
        callable_(*args, **kwargs)
        assert False, "Callable did not raise an exception"
    except except_cls as e:
        assert re.search(msg, util.text_type(e), re.UNICODE), "%r !~ %s" % (msg, e)
        print(util.text_type(e).encode('utf-8'))

    def _init_ddl(cls, dialect, connection, dbapi_connection, compiled_ddl):
        self = cls.__new__(cls)
        self.root_connection = connection
        self._dbapi_connection = dbapi_connection
        self.dialect = connection.dialect

        self.compiled = compiled = compiled_ddl
        self.isddl = True

        self.execution_options = compiled.execution_options
        if connection._execution_options:
            self.execution_options = dict(self.execution_options)
            self.execution_options.update(connection._execution_options)

        if not dialect.supports_unicode_statements:
            self.unicode_statement = util.text_type(compiled)
            self.statement = dialect._encoder(self.unicode_statement)[0]
        else:
            self.statement = self.unicode_statement = util.text_type(compiled)

        self.cursor = self.create_cursor()
        self.compiled_parameters = []

        if dialect.positional:
            self.parameters = [dialect.execute_sequence_format()]
        else:
            self.parameters = [{}]

        self.statement = compiled_ddl.string
        return self

    def assert_compile(self, clause, result, params=None,
                        checkparams=None, dialect=None,
                        checkpositional=None,
                        use_default_dialect=False,
                        allow_dialect_select=False,
                        literal_binds=False):
        if use_default_dialect:
            dialect = default.DefaultDialect()
        elif allow_dialect_select:
            dialect = None
        else:
            if dialect is None:
                dialect = getattr(self, '__dialect__', None)

            if dialect is None:
                dialect = config.db.dialect
            elif dialect == 'default':
                dialect = default.DefaultDialect()
            elif isinstance(dialect, util.string_types):
                dialect = url.URL(dialect).get_dialect()()


        kw = {}
        compile_kwargs = {}

        if params is not None:
            kw['column_keys'] = list(params)

        if literal_binds:
            compile_kwargs['literal_binds'] = True

        if isinstance(clause, orm.Query):
            context = clause._compile_context()
            context.statement.use_labels = True
            clause = context.statement

        if compile_kwargs:
            kw['compile_kwargs'] = compile_kwargs

        c = clause.compile(dialect=dialect, **kw)

        param_str = repr(getattr(c, 'params', {}))

        if util.py3k:
            param_str = param_str.encode('utf-8').decode('ascii', 'ignore')
            print(("\nSQL String:\n" + util.text_type(c) + param_str).encode('utf-8'))
        else:
            print("\nSQL String:\n" + util.text_type(c).encode('utf-8') + param_str)


        cc = re.sub(r'[\n\t]', '', util.text_type(c))

        eq_(cc, result, "%r != %r on dialect %r" % (cc, result, dialect))

        if checkparams is not None:
            eq_(c.construct_params(params), checkparams)
        if checkpositional is not None:
            p = c.construct_params(params)
            eq_(tuple([p[x] for x in c.positiontup]), checkpositional)

 def _bindparam_requires_quotes(self, value):
     """Return True if the given identifier requires quoting."""
     lc_value = value.lower()
     return (lc_value in self.reserved_words
             or value[0] in self.illegal_initial_characters
             or not self.legal_characters.match(util.text_type(value))
             )

    def _get_column_info(self, name, type_, nullable, default, primary_key):

        match = re.match(r"(\w+)(\(.*?\))?", type_)
        if match:
            coltype = match.group(1)
            args = match.group(2)
        else:
            coltype = "VARCHAR"
            args = ""
        try:
            coltype = self.ischema_names[coltype]
            if args is not None:
                args = re.findall(r"(\d+)", args)
                coltype = coltype(*[int(a) for a in args])
        except KeyError:
            util.warn("Did not recognize type '%s' of column '%s'" % (coltype, name))
            coltype = sqltypes.NullType()

        if default is not None:
            default = util.text_type(default)

        return {
            "name": name,
            "type": coltype,
            "nullable": nullable,
            "default": default,
            "autoincrement": default is None,
            "primary_key": primary_key,
        }

    def assert_compile(self, clause, result, params=None,
                        checkparams=None, dialect=None,
                        checkpositional=None,
                        use_default_dialect=False,
                        allow_dialect_select=False):
        if use_default_dialect:
            dialect = default.DefaultDialect()
        elif dialect == None and not allow_dialect_select:
            dialect = getattr(self, '__dialect__', None)
            if dialect == 'default':
                dialect = default.DefaultDialect()
            elif dialect is None:
                dialect = config.db.dialect
            elif isinstance(dialect, basestring):
                dialect = create_engine("%s://" % dialect).dialect

        kw = {}
        if params is not None:
            kw['column_keys'] = params.keys()

        if isinstance(clause, orm.Query):
            context = clause._compile_context()
            context.statement.use_labels = True
            clause = context.statement

        c = clause.compile(dialect=dialect, **kw)

        param_str = repr(getattr(c, 'params', {}))

        if util.py3k:
            param_str = param_str.encode('utf-8').decode('ascii', 'ignore')
            print(("\nSQL String:\n" + util.text_type(c) + param_str).encode('utf-8'))
        else:
            print(("\nSQL String:\n" + util.text_type(c).encode('utf-8') + param_str))

        cc = re.sub(r'[\n\t]', '', util.text_type(c))

        eq_(cc, result, "%r != %r on dialect %r" % (cc, result, dialect))

        if checkparams is not None:
            eq_(c.construct_params(params), checkparams)
        if checkpositional is not None:
            p = c.construct_params(params)
            eq_(tuple([p[x] for x in c.positiontup]), checkpositional)

    def __init__(self, left, right, astext=False,
                 opstring=None, result_type=None):
        self._astext = astext
        if opstring is None:
            if hasattr(right, '__iter__') and \
                    not isinstance(right, util.string_types):
                opstring = "#>"
                right = "{%s}" % (
                    ", ".join(util.text_type(elem) for elem in right))
            else:
                opstring = "->"

        self._json_opstring = opstring
        operator = custom_op(opstring, precedence=5)
        right = default_comparator._check_literal(
            left, operator, right)
        super(JSONElement, self).__init__(
            left, right, operator, type_=result_type)

 def _execute_scalar(self, stmt):
     return super(OracleExecutionContext_cx_oracle_with_unicode, self).\
                         _execute_scalar(util.text_type(stmt))

 def __init__(self, *arg, **kw):
     OracleExecutionContext_cx_oracle.__init__(self, *arg, **kw)
     self.statement = util.text_type(self.statement)

    def assert_compile(self, clause, result, params=None,
                       checkparams=None, dialect=None,
                       checkpositional=None,
                       check_prefetch=None,
                       use_default_dialect=False,
                       allow_dialect_select=False,
                       literal_binds=False,
                       schema_translate_map=None):
        if use_default_dialect:
            dialect = default.DefaultDialect()
        elif allow_dialect_select:
            dialect = None
        else:
            if dialect is None:
                dialect = getattr(self, '__dialect__', None)

            if dialect is None:
                dialect = config.db.dialect
            elif dialect == 'default':
                dialect = default.DefaultDialect()
            elif dialect == 'default_enhanced':
                dialect = default.StrCompileDialect()
            elif isinstance(dialect, util.string_types):
                dialect = url.URL(dialect).get_dialect()()

        kw = {}
        compile_kwargs = {}

        if schema_translate_map:
            kw['schema_translate_map'] = schema_translate_map

        if params is not None:
            kw['column_keys'] = list(params)

        if literal_binds:
            compile_kwargs['literal_binds'] = True

        if isinstance(clause, orm.Query):
            context = clause._compile_context()
            context.statement.use_labels = True
            clause = context.statement
        elif isinstance(clause, orm.persistence.BulkUD):
            with mock.patch.object(clause, "_execute_stmt") as stmt_mock:
                clause.exec_()
                clause = stmt_mock.mock_calls[0][1][0]

        if compile_kwargs:
            kw['compile_kwargs'] = compile_kwargs

        c = clause.compile(dialect=dialect, **kw)

        param_str = repr(getattr(c, 'params', {}))

        if util.py3k:
            param_str = param_str.encode('utf-8').decode('ascii', 'ignore')
            print(
                ("\nSQL String:\n" +
                 util.text_type(c) +
                 param_str).encode('utf-8'))
        else:
            print(
                "\nSQL String:\n" +
                util.text_type(c).encode('utf-8') +
                param_str)

        cc = re.sub(r'[\n\t]', '', util.text_type(c))

        eq_(cc, result, "%r != %r on dialect %r" % (cc, result, dialect))

        if checkparams is not None:
            eq_(c.construct_params(params), checkparams)
        if checkpositional is not None:
            p = c.construct_params(params)
            eq_(tuple([p[x] for x in c.positiontup]), checkpositional)
        if check_prefetch is not None:
            eq_(c.prefetch, check_prefetch)

    def assert_compile(
        self,
        clause,
        result,
        params=None,
        checkparams=None,
        dialect=None,
        checkpositional=None,
        check_prefetch=None,
        use_default_dialect=False,
        allow_dialect_select=False,
        literal_binds=False,
        schema_translate_map=None,
    ):
        if use_default_dialect:
            dialect = default.DefaultDialect()
        elif allow_dialect_select:
            dialect = None
        else:
            if dialect is None:
                dialect = getattr(self, "__dialect__", None)

            if dialect is None:
                dialect = config.db.dialect
            elif dialect == "default":
                dialect = default.DefaultDialect()
            elif isinstance(dialect, util.string_types):
                dialect = url.URL(dialect).get_dialect()()

        kw = {}
        compile_kwargs = {}

        if schema_translate_map:
            kw["schema_translate_map"] = schema_translate_map

        if params is not None:
            kw["column_keys"] = list(params)

        if literal_binds:
            compile_kwargs["literal_binds"] = True

        if isinstance(clause, orm.Query):
            context = clause._compile_context()
            context.statement.use_labels = True
            clause = context.statement

        if compile_kwargs:
            kw["compile_kwargs"] = compile_kwargs

        c = clause.compile(dialect=dialect, **kw)

        param_str = repr(getattr(c, "params", {}))

        if util.py3k:
            param_str = param_str.encode("utf-8").decode("ascii", "ignore")
            print(("\nSQL String:\n" + util.text_type(c) + param_str).encode("utf-8"))
        else:
            print("\nSQL String:\n" + util.text_type(c).encode("utf-8") + param_str)

        cc = re.sub(r"[\n\t]", "", util.text_type(c))

        eq_(cc, result, "%r != %r on dialect %r" % (cc, result, dialect))

        if checkparams is not None:
            eq_(c.construct_params(params), checkparams)
        if checkpositional is not None:
            p = c.construct_params(params)
            eq_(tuple([p[x] for x in c.positiontup]), checkpositional)
        if check_prefetch is not None:
            eq_(c.prefetch, check_prefetch)

    def _init_compiled(cls, dialect, connection, dbapi_connection,
                       compiled, parameters):
        """Initialize execution context for a Compiled construct."""

        self = cls.__new__(cls)
        self.root_connection = connection
        self._dbapi_connection = dbapi_connection
        self.dialect = connection.dialect

        self.compiled = compiled

        # this should be caught in the engine before
        # we get here
        assert compiled.can_execute

        self.execution_options = compiled.execution_options.union(
            connection._execution_options)

        self.result_column_struct = (
            compiled._result_columns, compiled._ordered_columns,
            compiled._textual_ordered_columns)

        self.unicode_statement = util.text_type(compiled)
        if not dialect.supports_unicode_statements:
            self.statement = self.unicode_statement.encode(
                self.dialect.encoding)
        else:
            self.statement = self.unicode_statement

        self.isinsert = compiled.isinsert
        self.isupdate = compiled.isupdate
        self.isdelete = compiled.isdelete
        self.is_text = compiled.isplaintext

        if not parameters:
            self.compiled_parameters = [compiled.construct_params()]
        else:
            self.compiled_parameters = \
                [compiled.construct_params(m, _group_number=grp) for
                 grp, m in enumerate(parameters)]

            self.executemany = len(parameters) > 1

        self.cursor = self.create_cursor()

        if self.isinsert or self.isupdate or self.isdelete:
            self.is_crud = True
            self._is_explicit_returning = bool(compiled.statement._returning)
            self._is_implicit_returning = bool(
                compiled.returning and not compiled.statement._returning)

        if self.compiled.insert_prefetch or self.compiled.update_prefetch:
            if self.executemany:
                self._process_executemany_defaults()
            else:
                self._process_executesingle_defaults()

        processors = compiled._bind_processors

        # Convert the dictionary of bind parameter values
        # into a dict or list to be sent to the DBAPI's
        # execute() or executemany() method.
        parameters = []
        if dialect.positional:
            for compiled_params in self.compiled_parameters:
                param = []
                for key in self.compiled.positiontup:
                    if key in processors:
                        param.append(processors[key](compiled_params[key]))
                    else:
                        param.append(compiled_params[key])
                parameters.append(dialect.execute_sequence_format(param))
        else:
            encode = not dialect.supports_unicode_statements
            for compiled_params in self.compiled_parameters:

                if encode:
                    param = dict(
                        (
                            dialect._encoder(key)[0],
                            processors[key](compiled_params[key])
                            if key in processors
                            else compiled_params[key]
                        )
                        for key in compiled_params
                    )
                else:
                    param = dict(
                        (
                            key,
                            processors[key](compiled_params[key])
                            if key in processors
                            else compiled_params[key]
                        )
                        for key in compiled_params
                    )

                parameters.append(param)
        self.parameters = dialect.execute_sequence_format(parameters)

#.........这里部分代码省略.........